Rich, smooth-flowing rollerball ink glides across the page for a luxurious feel! Handy refills save time and money since you don't have to keep replacing your pen. Fits any Parker-Style rollerball pen. Parker Pens part of a large selection of office supplies. Parker(R) Refill, Rollerball, Medium Point, 0.7mm, Blue is one of many Pen Refills available through Office Depot. Made by Parker.